Lock catch structure for connecting joints of fabricated building

Abstract

The utility model discloses a lock catch structure for a connection node of a fabricated building, which comprises a central node lock catch, positioning beams are fixedly arranged at the top and the bottom of the central node lock catch, a butt joint plate is fixedly arranged on the outer side of the central node lock catch, an upper beam column is fixedly arranged at the top of the central node lock catch, and a lower beam column is fixedly arranged at the bottom of the central node lock catch. A lower beam column is fixedly installed at the bottom of the center node lock catch, a right beam column is fixedly installed on the right side of the center node lock catch, and a left beam column is fixedly installed on the left side of the center node lock catch. According to the lock catch structure for the connecting joints of the fabricated building, the upper beam column and the center joint lock catch are directly and fixedly connected in an interpolation mode, the contact area of the connecting joints is effectively increased, and stress distribution between the upper beam column and the center joint lock catch can be more uniform through the interpolation mode; when external force is borne, stress can be dispersed through the large connection area, and connection damage caused by stress concentration in a local area is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment, specifically a locking structure for connection nodes in prefabricated buildings. Background Technology

[0002] The connection nodes of a building are the parts where different components (such as beams, columns, slabs, etc.) or different building parts (such as the connection between the curtain wall and the main structure, and between prefabricated components) are connected to each other in the building structure; these connection nodes are crucial to ensuring the integrity, stability and rationality of the force transmission path of the building structure.

[0003] In frame structure buildings, beam-column joints are key connection points; the internal forces (bending moment, shear force, axial force) in the beam need to be transferred to the column through the joint; the reinforcement configuration and concrete pouring quality at the joint directly affect many mechanical properties of the structure, such as seismic performance; generally, at beam-column joints, the longitudinal reinforcement of the beam is anchored in the column, and a stirrup reinforcement zone is set to enhance the shear resistance of the joint.

[0004] Buildings are subjected to various dynamic loads during use, such as wind loads, earthquakes, and machine vibrations. Taking wind loads as an example, when strong winds blow towards a building, the building will sway, and the connection joints will be subjected to repeated tension and compression. Especially for high-rise buildings, the lateral force generated by wind loads is large, and the stress cycle at the connection joints increases, which can easily lead to small relative displacements between the connecting components. Over time, this displacement will cause the joints to loosen. Utility Model Content

[0005] The purpose of this utility model is to provide a locking structure for connection nodes in prefabricated buildings to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, a locking structure for connection nodes in prefabricated buildings is provided, including a central node locking structure. Positioning beams are fixedly installed at the top and bottom of the central node locking structure, and a connecting plate is fixedly installed on the outer side of the central node locking structure. An upper beam column is fixedly installed at the top of the central node locking structure, and a lower beam column is fixedly installed at the bottom. A right beam column is fixedly installed on the right side of the central node locking structure, and a left beam column is fixedly installed on the left side. A support plate is fixedly installed in the middle of the left beam column, and reinforcing beams are welded and fixed to both sides of the support plate.

[0007] Preferably, the upper and lower beam columns have a symmetrical locking structure about the center node, and the right and left beam columns have a symmetrical locking structure about the center node.

[0008] Preferably, the central node latch is inserted into the positioning grooves at the ends of the upper and lower beam columns by positioning beams at the upper and lower ends, respectively, and both the positioning grooves and the positioning beams have rectangular cross-sections.

[0009] Preferably, two sets of mating plates are installed on the positioning beam, and the positioning beam is screwed to the bottom of the positioning seat on the upper beam column through the upper mating plate, and the positioning beam is screwed to the surface of the positioning seat on the lower beam column through the lower mating plate; both sides of the two sets of positioning seats are welded and fixed with extension plates, and the extension plates are made of metal and are isosceles trapezoidal in shape. The two sets of extension plates cover the surfaces of the right beam column and the left beam column respectively and are fixedly connected by multiple sets of bolts.

[0010] Preferably, both the left and right beams have assembly plates welded and fixed to their ends, and both the left and right beams have an "I" shaped cross-section. Additionally, both the left and right beams have reinforcing beams fixed to both sides of the support plates.

[0011] Preferably, the cross-section of the reinforcing beam is "V" shaped, and both ends of the two sets of mating plates are provided with assembly grooves. The size of the assembly grooves is adapted to the size of the assembly plates, and the assembly plates are inserted into the interior of the assembly grooves.

[0012] Preferably, both ends of the central node latch are fixedly provided with a first limiting piece and a second limiting piece, and a receiving groove is opened between the first limiting piece and the second limiting piece. At the same time, the right beam column and the left beam column are respectively inserted into the receiving grooves opened on both sides of the central node latch through the support plates on them and are fixed by multiple sets of bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a positioning seat to cover the surface of the docking plate and is evenly fixed by eight sets of bolts. The upper beam column and the center node lock are directly fixed by an internal insertion method, which effectively increases the contact area at the connection node. The internal insertion method can make the stress distribution between the upper beam column and the center node lock more uniform. When subjected to external force, the larger connection area can disperse the stress and avoid stress concentration in local areas, which may lead to connection failure.

[0015] 2. This utility model uses a positioning seat to cover the surface of the docking plate and is evenly fixed by eight sets of bolts. The two sets of assembly plates at the end of the left beam column are respectively inserted into the assembly grooves opened on one side of the two sets of docking plates on the central node lock. At this time, the right beam column and the left beam column are respectively inserted into the receiving grooves opened on both sides of the central node lock by the support plates on them and fixed by multiple sets of bolts. The two sets of extension plates cover the surface of the right beam column and the left beam column respectively and are fixed by multiple sets of bolts. When strong wind blows towards the building, this building node will not loosen, improving the safety and stability of the equipment during use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A bottom view;

[0019] Figure 3 for Figure 1 Top view;

[0020] Figure 4 A schematic diagram of the interlocking connection structure between the right beam-column and the center node;

[0021] Figure 5 for Figure 4 A bottom view.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Upper beam column; 11. Extension piece; 12. Positioning seat; 13. Positioning groove; 2. Right beam column; 3. Lower beam column; 4. Left beam column; 41. Reinforcing beam; 42. Support plate; 43. Assembly plate; 5. Center node lock; 51. Positioning beam; 52. Butt plate; 53. First limiting piece; 54. Second limiting piece; 55. Assembly groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Please see Figure 1-5This utility model provides a locking structure for connection nodes of prefabricated buildings, including a central node locking 5. The top and bottom of the central node locking 5 are fixedly provided with positioning beams 51, and the outer side of the central node locking 5 is fixedly provided with a connecting plate 52. At the same time, the top of the central node locking 5 is fixedly installed with an upper beam column 1, and the bottom of the central node locking 5 is fixedly installed with a lower beam column 3. The right side of the central node locking 5 is fixedly installed with a right beam column 2, and the left side of the central node locking 5 is fixedly installed with a left beam column 4. The middle of the left beam column 4 is fixedly provided with a support plate 42, and the two sides of the support plate 42 are welded and fixed with reinforcing beams 41.

[0029] Working Principle: During use, the upper beam column 1, lower beam column 3, and center node locking buckle 5 are first connected and fixed. Since the installation method is the same, only the connection method between the upper beam column 1 and the center node locking buckle 5 is described here: Specifically, the positioning groove 13 at the bottom of the upper beam column 1 is inserted into the outside of the positioning beam 51. At this time, the positioning seat 12 covers the surface of the connecting plate 52 and is evenly fixed by eight sets of bolts. The upper beam column 1 and center node locking buckle 5 are directly fixed using an inset method, effectively increasing the contact area at the connection node. The inset method allows for a more uniform force distribution between the upper beam column 1 and the center node locking buckle 5. When subjected to external force, the larger connection area can disperse stress, avoiding stress concentration in local areas that could lead to connection failure. The right beam column 2 and left beam column 4 are then connected to the center node locking buckle... The connection between the left beam column 4 and the central node locking buckle 5 is described here only because the installation method is the same: Specifically, the two sets of assembly plates 43 at the end of the left beam column 4 are respectively inserted into the assembly grooves 55 opened on one side of the two sets of docking plates 52 on the central node locking buckle 5. At this time, the right beam column 2 and the left beam column 4 are respectively inserted into the receiving grooves opened on both sides of the central node locking buckle 5 through the support plates 42 on them and fixed by multiple sets of bolts; the two sets of extension plates 11 respectively cover the surface of the right beam column 2 and the left beam column 4 and are fixedly connected by multiple sets of bolts, which improves the stability of the connection between the upper beam column 1, the right beam column 2, the lower beam column 3, the left beam column 4 and the central node locking buckle 5. When strong wind blows towards the building, this building node will not loosen, improving the safety and stability of the equipment during use.

[0030] In a preferred embodiment, the upper beam column 1 and the lower beam column 3 are symmetrical about the center node locking 5, and the right beam column 2 and the left beam column 4 are symmetrical about the center node locking 5.

[0031] In a preferred embodiment, the central node latch 5 is inserted into the positioning grooves 13 at the ends of the upper beam column 1 and the lower beam column 3 by positioning beams 51 at the upper and lower ends, respectively, and the positioning grooves 13 and the positioning beams 51 are both rectangular in cross-section.

[0032] Two sets of docking plates 52 are installed on the positioning beam 51, and the positioning beam 51 is screwed to the bottom of the positioning seat 12 on the upper beam column 1 through the upper docking plate 52. At the same time, the positioning beam 51 is screwed to the surface of the positioning seat 12 on the lower beam column 3 through the lower docking plate 52. Extension pieces 11 are welded to both sides of the two sets of positioning seats 12. The extension pieces 11 are made of metal and are set in an isosceles trapezoid. The two sets of extension pieces 11 cover the surface of the right beam column 2 and the left beam column 4 respectively and are fixedly connected by multiple sets of bolts.

[0033] As a preferred embodiment, the ends of the left column 4 and the right column 2 are both welded and fixed with assembly plates 43, and the cross-sections of the left column 4 and the right column 2 are both set in an "I" shape. At the same time, the support plates 42 on the left column 4 and the right column 2 are both fixed with reinforcing beams 41 on both sides.

[0034] The cross-section of the reinforcing beam 41 is set in a "V" shape, and both ends of the two sets of mating plates 52 are provided with assembly grooves 55. The assembly grooves 55 are adapted to the size of the assembly plate 43, and the assembly plate 43 is inserted into the interior of the assembly grooves 55.

[0035] As a preferred embodiment, both ends of the central node latch 5 are fixedly provided with a first limiting piece 53 and a second limiting piece 54, and a receiving groove is opened between the first limiting piece 53 and the second limiting piece 54. At the same time, the right beam column 2 and the left beam column 4 are respectively inserted into the receiving grooves opened on both sides of the central node latch 5 through the support plate 42 on it and fixed by multiple sets of bolts.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A locking structure for connection nodes in prefabricated buildings, including a central node locking structure (5), characterized in that: The center node latch (5) is fixedly provided with positioning beams (51) at the top and bottom, and a connecting plate (52) is fixedly provided on the outer side of the center node latch (5). At the same time, an upper beam column (1) is fixedly installed on the top of the center node latch (5), and a lower beam column (3) is fixedly installed on the bottom of the center node latch (5). A right beam column (2) is fixedly installed on the right side of the center node latch (5), and a left beam column (4) is fixedly installed on the left side of the center node latch (5). A support plate (42) is fixedly provided in the middle of the left beam column (4), and reinforcing beams (41) are welded and fixed on both sides of the support plate (42).

2. The locking structure for connection nodes of prefabricated buildings as described in claim 1, characterized in that: The upper beam column (1) and lower beam column (3) are symmetrical about the center node lock (5), and the right beam column (2) and left beam column (4) are symmetrical about the center node lock (5).

3. The locking structure for connection nodes of prefabricated buildings as described in claim 1, characterized in that: The central node latch (5) is inserted into the positioning groove (13) at the ends of the upper beam column (1) and lower beam column (3) through the positioning beams (51) at the upper and lower ends, respectively, and the positioning groove (13) and the positioning beam (51) are both rectangular in cross section.

4. The locking structure for connection nodes of prefabricated buildings as described in claim 1, characterized in that: Two sets of docking plates (52) are installed on the positioning beam (51), and the positioning beam (51) is screwed to the bottom of the positioning seat (12) on the upper beam column (1) through the upper docking plate (52). At the same time, the positioning beam (51) is screwed to the surface of the positioning seat (12) on the lower beam column (3) through the lower docking plate (52). Extension pieces (11) are welded to both sides of the two sets of positioning seats (12), and the extension pieces (11) are made of metal and are set in an isosceles trapezoid. The two sets of extension pieces (11) cover the surface of the right beam column (2) and the left beam column (4) respectively and are fixedly connected by multiple sets of bolts.

5. The locking structure for connection nodes of prefabricated buildings as described in claim 1, characterized in that: The left beam (4) and the right beam (2) are both welded and fixed with assembly plates (43), and the cross sections of the left beam (4) and the right beam (2) are both set in an "I" shape. At the same time, the support plates (42) on the left beam (4) and the right beam (2) are both fixed with reinforcing beams (41).

6. The locking structure for connection nodes of prefabricated buildings as described in claim 5, characterized in that: The cross section of the reinforcing beam (41) is "V" shaped, and both ends of the two sets of connecting plates (52) are provided with assembly slots (55). The size of the assembly slots (55) is matched with that of the assembly plates (43), and the assembly plates (43) are inserted into the interior of the assembly slots (55).

7. The locking structure for connection nodes of prefabricated buildings as described in claim 1, characterized in that: Both ends of the central node latch (5) are fixedly provided with a first limiting piece (53) and a second limiting piece (54), and a receiving groove is opened between the first limiting piece (53) and the second limiting piece (54). At the same time, the right beam column (2) and the left beam column (4) are respectively inserted into the receiving grooves opened on both sides of the central node latch (5) through the support plate (42) on it and fixed by multiple sets of bolts.

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